Global Patent Index - EP 3979638 A4

EP 3979638 A4 20220921 - POINT CLOUD ENCODING AND DECODING METHOD, ENCODER, DECODER, AND COMPUTER STORAGE MEDIUM

Title (en)

POINT CLOUD ENCODING AND DECODING METHOD, ENCODER, DECODER, AND COMPUTER STORAGE MEDIUM

Title (de)

PUNKTHÄUFUNGSKODIERUNGS- UND -DEKODIERUNGSVERFAHREN, KODIERER, DEKODIERER, UND COMPUTERSPEICHERMEDIUM

Title (fr)

PROCÉDÉ DE CODAGE ET DE DÉCODAGE DE NUAGE DE POINTS, CODEUR, DÉCODEUR ET SUPPORT DE STOCKAGE INFORMATIQUE

Publication

EP 3979638 A4 20220921 (EN)

Application

EP 20834209 A 20200515

Priority

  • US 201962870553 P 20190703
  • CN 2020090677 W 20200515

Abstract (en)

[origin: EP3979638A1] A point cloud encoding and decoding method, an encoder, a decoder, and a computer storage medium are provided. The encoder determines a processing order of point cloud data during point cloud encoding, where the processing order indicates a coordinate axis processing order of three-dimensional coordinates of the point cloud data and the point cloud data is all or part of data in point cloud. The encoder determines a coordinate-axis-order index corresponding to the processing order. The encoder encodes the coordinate-axis-order index and signals encoded bits into a bitstream. The encoder processes the point cloud data according to the processing order, to obtain point cloud data to-be-encoded. The encoder encodes the point cloud data to-be-encoded and signals encoded bits into the bitstream. The decoder parses a bitstream to obtain a coordinate-axis-order index. The decoder determines a processing order of point cloud data during point cloud decoding according to the coordinate-axis-order index. The decoder parses the bitstream to obtain recovered data of the point cloud data. The decoder determines a position of coordinate data of the point cloud data in a storage unit of the recovered data according to the processing order.

IPC 8 full level

H04N 19/10 (2014.01); G06T 9/40 (2006.01)

CPC (source: EP KR US)

G06T 9/00 (2013.01 - KR); G06T 9/001 (2013.01 - EP); H04N 19/119 (2014.11 - US); H04N 19/129 (2014.11 - EP); H04N 19/174 (2014.11 - US); H04N 19/176 (2014.11 - EP); H04N 19/18 (2014.11 - EP); H04N 19/182 (2014.11 - EP); H04N 19/184 (2014.11 - KR); H04N 19/30 (2014.11 - US); H04N 19/597 (2014.11 - EP KR); H04N 19/70 (2014.11 - EP KR US); H04N 19/96 (2014.11 - EP US); H04N 19/119 (2014.11 - EP); H04N 19/60 (2014.11 - US)

Citation (search report)

  • [E] WO 2021000205 A1 20210107 - GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD [CN] & EP 3993424 A1 20220504 - GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD [CN]
  • [XI] EP 3324310 A1 20180523 - GOOGLE LLC [US]
  • [XPI] WEI ZHANG ET AL: "[G-PCC][new proposal] The effect of RAHT transform order on the attribute coding performance", no. m49126, 3 July 2019 (2019-07-03), XP030207322, Retrieved from the Internet <URL:http://phenix.int-evry.fr/mpeg/doc_end_user/documents/127_Gothenburg/wg11/m49126-v1-m49126.zip m49126/[G-PCC][new proposal] The effect of RAHT transform order on the attribute coding performance.docx> [retrieved on 20190703]
  • [XPI] DAVID FLYNN (APPLE) ET AL: "[G-PCC][New proposal] G-PCC geometry swizzling", no. m51027, 3 October 2019 (2019-10-03), XP030221536, Retrieved from the Internet <URL:http://phenix.int-evry.fr/mpeg/doc_end_user/documents/128_Geneva/wg11/m51027-v1-m51027_v1.zip m51027.pdf> [retrieved on 20191003]
  • See also references of WO 2021000658A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3979638 A1 20220406; EP 3979638 A4 20220921; CN 113826385 A 20211221; CN 114339215 A 20220412; JP 2022539411 A 20220908; JP 7490685 B2 20240527; KR 20220029595 A 20220308; US 11509939 B2 20221122; US 11902588 B2 20240213; US 11902589 B2 20240213; US 2022124374 A1 20220421; US 2023047499 A1 20230216; US 2023058703 A1 20230223; US 2024171779 A1 20240523; WO 2021000658 A1 20210107

DOCDB simple family (application)

EP 20834209 A 20200515; CN 2020090677 W 20200515; CN 202080035529 A 20200515; CN 202210037486 A 20200515; JP 2021578172 A 20200515; KR 20217043227 A 20200515; US 202117646290 A 20211228; US 202217964242 A 20221012; US 202217964458 A 20221012; US 202418430805 A 20240202